How about having a sticky with all the aftermarket suspension parts that's available for the WRX? That way, we can use this as a reference to order parts and know what is available.
I'll start with some known parts that I have. Please post here if you have some part numbers that we can add to the listings. Thanks!
Front 21mm Sway Bar 666 311 A21
Rear 22mm Adjustable Sway Bar 666 311 BJ22
Type Flex Coilovers DSS28-61SS1
Electronic Damping Force Controller EDK01-14140